The Smartwares SH4-99572 is a wireless switch operating at 433 MHz. It allows for remote control of electrical devices, enhancing convenience in home automation. Typical applications include controlling lights and appliances without manual operation. https://elecena.pl/product/28706001/smartwares-sh4-99572-basic-wireless-433-mhz-switch-for-wall-amp-socket 2025-05-16 https://elecena.pl/product/28706001/smartwares-sh4-99572-basic-wireless-433-mhz-switch-for-wall-amp-socket 2026-07-03